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Irving, TX

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
972-607 3 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-01-24   
972-607 4 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-02-16   
972-607 5 DLLTTX01DMD  5562 METROPCS, INC. 552   2007-01-12   
972-607 6 DLLTTX01DMD  5562 METROPCS, INC. 552   2007-01-12   
972-607 7 DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-10-13   
972-607 8 DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2002-10-13   
972-607 9 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2005-02-16   
972-650 A IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 A IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 0 DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2010-10-28   
972-652 1 IRNGTXXBPS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 2 DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2009-10-06   
972-652 3 DLLSTXNODS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2008-01-03   
972-652 4 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 5 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 6 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 7 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-652 8 DLLBTXPVDS0  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552   2010-08-09   
972-652 9 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 A IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 0 IRNGTXXBXZX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-653 1 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 2 IRNGTXXBXZX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-653 3 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 4 DLLSTXTLDS7  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-653 5 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 6 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 7 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-653 8 DLLSTXTLDS7  7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 552      
972-653 9 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 A IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 0 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 1 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 2 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 3 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 4 IRNGTXXBXZX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-655 5 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 6 IRNGTXXBXZX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-655 7 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-655 8 IRNGTXXBXZX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-655 9 IRNGTXXBXZX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 552   2007-01-06   
972-657 A IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-657 0 DLLTTX01DMD  6529 T-MOBILE USA, INC. 552   2007-03-19   
972-657 1 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-657 2 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-657 3 DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552      
972-657 4 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-657 5 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-657 6 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
972-657 7 IRNGTXXEDS0  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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